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class Person:
 """Person类"""
    def __init__(self, name, age):
        self.name = name
        self.age = age

    def speak(self)
        print("我是%s, 今年%s岁了,."% (self.name, self.age,))
class Student(Person):
 """Student类"""
    def __init__(self, name, age, school, id):
         super(Student, self).__init__(name, age)
         self.school = school
         self.my_id = id
     def speak(self):
         print("我是%s, 今年%s岁了, 我来⾃%s, 学号是%d。"% (self.name, self.age, self.school, self.my_id))
     def run(self, v, times):
        return v*times
class CollegeStudent(Student):
    def __init__(self, name, age, school, id, language):
        super(CollegeStudent, self).__init__(name, age, school, id)
        self.language = language
        def speak(self):
        print("我是%s, 今年%s岁了, 我来⾃%s, 学号是%d，我会%s。"% (self.name, self.age, self.school, self.my_id,self.language))
    def coding(self):
        print("I am coding", end=" ")
        for i in range(10):
        print(".", end="")
        sleep(1)
x = CollegeStudent('Jim', 18, 'Blueking', 200101, 'English') x.speak()
x.coding()
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